The Frenchman was the focal point of The Invincibles only a few seasons early. He was - and remains to this day - the club's all-time leading goalscorer, and his departure left Arsene Wenger with the impossible job of trying to replace him.

Henry was signed for £16million, and put pen to paper on a four-year deal with the Nou Camp giants, with whom he'd finally win the Champions League with.

Upon signing he told Barcelona's official website: "It is incredible. I am looking forward to playing in the Camp Nou and helping the team in every way I can.

Thierry Henry broke the heart of every Arsenal fan when he signed for Barcelona (Image: AFP)

"The most important thing that made me come [here] is the way Barca plays, the fans and the support they give. Without good fans it is difficult to have a good team and vice versa."

He also had a few words to say about his mentor Wenger, the man who gave him his first start at Monaco and who signed him for Arsenal.

Arsene Wenger signed the Frenchman from Monaco back in 1999 (Image: Reuters)

But interestingly, with the benefit of hindsight, what he said about the Frenchman shows little has changed at Arsenal in just over ten years.

"Arsene has been part of my life for as long as I can remember," Henry told The Sun, after officially leaving Arsenal for Barcelona.

Henry went on to become Arsenal's all-time leading marksman (Image: Reuters)

"Unfortunately and understandably, he has said that at this moment he will not commit to the club past the expiration of his current deal, which finishes at the end of the coming season.

"I respect his decision and his honesty but I will be 31 at the end of next season and I cannot take the chance to be there without Arsene Wenger and David Dein."

The Frenchman joined Barcelona in 2007 for £16million (Image: Reuters)

Last season Wenger refused to confirm whether he'd be signing a new deal at the club, as Mesut Ozil and Alexis Sanchez also stalled on penning extensions.

The decision had a negative effect on the players, who felt their own futures were uncertain given the uncertainty surrounding their manager's.

Wenger is under considerable pressure at Arsenal (Image: PA)

Wenger eventually signed a new two-year deal to stay at Arsenal, prompting Ozil to then do the same. Sanchez meanwhile left for Manchester United.